699868820745 has 32 divisors (see below), whose sum is σ = 1249168314240. Its totient is φ = 371776248000.

The previous prime is 699868820711. The next prime is 699868820753. The reversal of 699868820745 is 547028868996.

It is not a de Polignac number, because 699868820745 - 2⁶ = 699868820681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10293234 + ... + 10361003.

It is an arithmetic number, because the mean of its divisors is an integer number (39036509820).

Almost surely, 2^699868820745 is an apocalyptic number.

It is an amenable number.

699868820745 is a deficient number, since it is larger than the sum of its proper divisors (549299493495).

699868820745 is a wasteful number, since it uses less digits than its factorization.

699868820745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20654502 (or 20654496 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 72.

The spelling of 699868820745 in words is "six hundred ninety-nine billion, eight hundred sixty-eight million, eight hundred twenty thousand, seven hundred forty-five".